'CD' computer abbreviation usually means ?
A). Command Description
B). Change Data
C). Copy Density
D). Compact Disc
1. In which decade was the ARRL founded?
5. The material known in commerce as Terylene is a
6. Terylene is a condensation polymer of ethylene glycol and which acid?
7. Choose the word which is different from the rest.
8. Choose the word which is different from the rest.